Permutation-padlock.



PATENTED DEG; 27, 1904.

E. LITTS.

PERMUTATIGN PADLOCK.

APPLICATION FILED MAR.3,1904.

1 1 venl'oa Edwin L 127.5,

5% My @aA/m4 PATEN'IED DEG.v 27, 1904.

No. 778.833.v

E. LITTS.

PBRMUTATION PADLOGK.

APPLICATION FILED MAB..3,1904.

2 SHEETS-SHEET 2.

I rwani'oz Efo/w In LS.

UNITED STATES Patented December 27, 1904.

PATENT OFFICE.

EDIVIN LITTS, OFV SGHENECTADY, NEV YORK.

PERNlUTATlON-PADLOCK.

SPECIFICATION forming part of Letters Patent No. 778,833, dated December 27, 1904.

Application filed Mai-oh 3, 1904. Serial No. 196,470.

T all 1071/0771/ t Hefty concern:

Be it known that I, EDWIN Lrr'rs, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented new and useful Improvements in Permutation-Padlocks, of which the following is a speciiication.

This invention relates to permutation-padlocks, the object oiv the invention being to provide a padlock involving a combination of tumblers and operating mechanism therefor, which is productive of an exceedingly simple, cheap, and reliable permutation-lock, thus doing away with the necessity of employing a separate detachable key without liability of the loss of suoli key. The parts of the locking mechanism are so constructed and arranged that the combination may be easily and quickly changed indelinitely.

lith the above and other objects in view, the nature of which will moi'e fully appear as the description proceeds, the invention consists in the novel construction, combination. and arrangement of parts, as will be herein fully described, illustrated, and claimed.

In the accompanying' drawings, Figure 1 is a front or face view of the permutation-padlock embodying the present invention. Fig. Q is a diametrical section through the same. Fig. 3 is a face view of the lock with the adjacent i'ace-plate removed. Fig. 4 is a similar view, partly in section, showing the adjacent face-plate, tumbler, and knob with its attachments removed. Fig. is a view similar to Fig. 4, showing the double-angcd tumbler in position to release the hasp. Fig. 6 is an inside view of the face-plate, including the knob-spindle and its attachments. Fig. 7 is an inside face View of the single-anged tumbler. Fig. 8 is an elevation of the lock-case and hasp with all detachable parts removed. Fig. 9 is an outer face view of the doublelianged tumbler.

Like reference-numerals designate corresponding parts in all iigures of the drawings.

The lock-case, which is illustrated without the locking mechanism in Fig. 8, is in the form of a shallow and hollow cylinder, comprising a rim 1, the rear side 2, and what I term a l face-plate7 3, which is secured to the rim 1 by means oil screws, rivets, or other suitable terior of the case. The case is also provided at a suitable point with a lug 4, to which is hinged one end oi' a curved hasp 5, the opposite end of which is reduced to 'form a l shouldered extremity 6 and also aV shoulder 7,

which is adapted to meet the outer surface of the rim of the case and hold the shouldered extremity 6 in aposition to be operated upon y by the tumblers hereinafter described.

Revolubly mounted in the case is what I term a double-flanged and disk-shaped tumbler 8, which rests in contact with the back 2 of the case and rides at its periphery in contact with the inner surface of the rim 1.

Arranged opposite the tumbler 8 is another single-anged tumbler 9, which is also revolubly mounted in the case and abuts against the inner surface of the face-plate 3.

The tumblers 8 and 9 are provided along their outer edges with inwardly-projecting annular flanges 10 and 11, between which is left an annular space for the entrance ot' the shouldered portion oi' the hasp. The shouldered portion of the hasp is, however, in the main of greater width than the distance between flanges 1() and 11 and is provided with oppositely-located grooves 12, in which the inner edges of the flanges 10 and 11 Work and by means oi' which the hasp is locked except when the tumblers are adjusted for the purpose of releasing the hasp.

In order to admit of the entrance and removal of the shouldered portion of the hasp, the rim oi' the casing is provided with an opening 13, and the flanges 10 and 11 are each provided at a single point with notches 14 and 15 just large enough to admit the shouldered extremity of the latch when they are brought to register with the opening 13 in the rim ot' the case.

In order to provide for adjusting the tumbler-disks, resort is had to a knob 15a, the

shank or spindle 16 of which passes through and is journaled in an opening of the face-plate 3, as shown in Fig. 2. Mounted on the spindle 16 within the lock-case is a hub 17, from fasteners 3, thus preventing' access to the inwhich project radially-disposed pins or spokes l 19 and 20, and said hub is adjustable upon and around the spindle 16 by means oi a set-screw 21, by means o't' which the combination can be changed, as will hereinafter appear.

The tumbler 9 is provided with notches 22 to receive the extremities of the pins or spokes 19 and 20, so that said tumbler is caused to rotate with the knob and its spindle, thus providing' for turning' the tumbler 9 until the notch thereof is brought into position toreceive the hasp. The oppositely-loeated tumbler 8 is provided with a deep flange 23, which extends far enough to lind a bearing against the tumbler 9, thus properly positioning the tumblers and giving' them the proper bearing against each other, whereby they are adapted to mutually support each other within the case. Extending inwardly from the inner flange 23 of the tumbler 8 is a shoulder 24, which for convenience is shown in the form of a pin, and one of the spokes, as 19, is olfset intermediate its ends or provided with a shoulder 25, which is adapted to come into contact with the shoulder 241 upon turning' the knob 15, and thereby correspondingly turn the tumbler 8 until the notch thereoil is brought into position to receive and release the hasp.

In operating' the lock the knob 15 is turned in one direction until one of the tumbler-disks is brought into position to receive and release the hasp. The knob is then turned in the opposite direction, so as to set the other tumbler for a like purpose. Thereupon the shouldered extremity of the hasp maybe either inserted or removed, as it is no longer locked by the engagement between the flanges 10 and 11 of the tumblers and the grooves l2 of the hasp.

To provide for properly adjusting or setting the tumblers, the knob 15a or spindle 16 is provided with a graduated disk 26, which rotates with the spindle upon the outer surface of the face-plate and is adapted to register with other graduations 27 on the face plate. lhile the drawings show but two tumblerdisks, it will be understood that a greater number of tumbler-disks may be employed, the essential feature being that each of the tumbler-disks have an inwardly projecting flange to interlock with the hasp and provided with notches to receive the same. By

means of the set-screw 21 the hub 17, with its spokes, may be adjusted around the spindle so as to change the relation of the oifset or shoulder 25 to the graduations on the disk 26, and

in this way the combination may be changed indefinitely.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A permutation-lock, comprising a case havingan opening therein, a pivoted hasp having its extremity movable through said opening, and formed with opposite grooves, tum.-

vblers rotatable within the case, and having inner flanges working in said grooves, said llanges having notches to admit said hasp extremity therebetween, and means for separatcly adjusting' the tumblers to bring the notches into registry with each other, one ot' said tumblers having' a wider .flange supporting the two tumblers the proper distance apart and against the inner sides of the faceplates of the case.

2. A permutation-lock, comprising a case having an opening therein, a pivoted hasp having its extremity movable through said opening, and formed with opposite grooves, tumblers rotatable within the case, and having inner flanges working in said grooves, said liang'es having notches to admit said hasp'extremity therebetween, and one ot' said tumblers having a wider liange supporting the two tumblers against the inner sides of the case, this flange having an inner shoulder, and an operating-spindle provided with devices in permanent engagement with one of the tumblers, and having a member adapted to be carried against said shoulder.

3. A permutation-lock, comprising a case having' an opening therein, apivoted has p having its extremity movable through said opening', and formed with opposite grooves, tumblers rotatable within the ease, and having inner ianges working in said grooves, said tlanges having notches to admit said hasp extremity therebetween, and one of said tumblers having inner radial notches, and the other a wider flange supporting' the two tumblers against the inner sides of the case, this Harige having an inner shoulder, and an operating-spindle carrying a hub having radial arms extending into said radial notches, oneI of the arms being offset for engagement with said shoulder.

In testimony whereof l my signature in presence of two witnesses.

EDWIN LITTS. Witnesses:

VWILLIAM Pownns, EDWARD E. KINGSMANN.

IOC 

